What makes you think Intel won't go for as much as they can? They aren't a charity.
The last time Intel tried launching a dGPU, it was garbage. Intel's IGP drivers are ok-ish as far as gaming is concerned, nothing any enthusiast would be particularly eager to jump onto especially if the prices are anywhere near AMD/Nvidia GPUs, especially if Nvidia and AMD GPU supply gets better in the meantime.
Intel is in a worse situation for GPU market penetration than AMD was when it launched the RX470/480. If it wants to grab market share, it will need to provide exceptional performance per dollar to offset its nonexistent to somewhat negative reputation handicap in the gaming graphics department.
Intel's biggest potential customer base for DG2/Alchemist will be people desperate enough for a meaningful upgrade at a reasonable price to take a chance on early hardware and driver maturity.